SHIROU OKA

Last Updated :2020/12/01

Affiliations, Positions
Hiroshima University Hospital, Associate Professor or Lecturer
E-mail
oka4683hiroshima-u.ac.jp

Basic Information

Academic Degrees

  • Hiroshima University

Research Fields

  • Medicine,dentistry, and pharmacy;Clinical internal medicine;Gastroenterology

Educational Activity

Course in Charge

  1. 2020, Undergraduate Education, Intensive, Symptomatology, Diagnosis and Treatment
  2. 2020, Undergraduate Education, Year, Clinical diagnosis and treatment I
  3. 2020, Undergraduate Education, Intensive, Introduction to clinical clerkship

Research Activities

Academic Papers

  1. Current Status of Narrow-Band Imaging Magnifying Colonoscopy for Colorectal Neoplasia in Japan, DIGESTION, 83(3), 167-172, 2011
  2. Quantitative analysis of colorectal lesions observed on magnified endoscopy images, JOURNAL OF GASTROENTEROLOGY, 46(12), 1382-1390, DEC 2011
  3. Outcome of patients who have undergone total enteroscopy for obscure gastrointestinal bleeding, WORLD JOURNAL OF GASTROENTEROLOGY, 18(7), 666-672, FEB 21 2012
  4. Computer-aided system for predicting the histology of colorectal tumors by using narrow-band imaging magnifying colonoscopy, GASTROINTESTINAL ENDOSCOPY, 75(1), 179-185, JAN 2012
  5. CURRENT STATUS AND FUTURE PERSPECTIVES OF ENDOSCOPIC SUBMUCOSAL DISSECTION FOR COLORECTAL TUMORS, DIGESTIVE ENDOSCOPY, 24, 73-79, MAY 2012
  6. USEFULNESS AND SAFETY OF SB KNIFE JR IN ENDOSCOPIC SUBMUCOSAL DISSECTION FOR COLORECTAL TUMORS, DIGESTIVE ENDOSCOPY, 24, 90-95, MAY 2012
  7. Clinical outcomes of endoscopic submucosal dissection for rectal tumor close to the dentate line, GASTROINTESTINAL ENDOSCOPY, 76(2), 444-450, AUG 2012
  8. The impact of narrow band imaging for colon polyp detection: a multicenter randomized controlled trial by tandem colonoscopy, JOURNAL OF GASTROENTEROLOGY, 47(10), 1099-1107, OCT 2012
  9. Clinical features of pharyngeal intraepithelial neoplasias and outcomes of treatment by endoscopic submucosal dissection, GASTROINTESTINAL ENDOSCOPY, 76(6), 1095-1103, DEC 2012
  10. PARP6, a mono(ADP-ribosyl) transferase and a negative regulator of cell proliferation, is involved in colorectal cancer development, INTERNATIONAL JOURNAL OF ONCOLOGY, 41(6), 2079-2086, DEC 2012
  11. Clinicopathological features of minute pharyngeal lesions diagnosed by narrow-band imaging endoscopy and biopsy, WORLD JOURNAL OF GASTROENTEROLOGY, 18(44), 6468-6474, NOV 28 2012
  12. Relationship between Narrow-Band Imaging Magnifying Observation and Pit Pattern Diagnosis in Colorectal Tumors, DIGESTION, 87(1), 53-58, 2013
  13. Endoscopic submucosal dissection for residual early gastric cancer after endoscopic submucosal dissection, GASTROINTESTINAL ENDOSCOPY, 77(2), 298-302, FEB 2013
  14. Warning for unprincipled colorectal endoscopic submucosal dissection: Accurate diagnosis and reasonable treatment strategy, DIGESTIVE ENDOSCOPY, 25(2), 107-116, MAR 2013
  15. Small Bowel Abnormalities in Patients with Compensated Liver Cirrhosis, DIGESTIVE DISEASES AND SCIENCES, 58(5), 1390-1396, MAY 2013
  16. Lymphatic vessel density at the site of deepest penetration as a predictor of lymph node metastasis in submucosal colorectal cancer, Dis Colon Rectum, 50(1), 13-21, 20070601
  17. TECHNIQUES AND PITFALLS OF ENDOSCOPIC SUBMUCOSAL DISSECTION FOR COLORECTAL TUMORS, Dig Endosc, 19, S30-33, 20070904
  18. Optical biopsy of early gastroesophageal cancer by catheter-based reflectance-type laser-scanning confocal microscopy, J Biomed Opt, 13(5), 20081201
  19. Colorectal endoscopic submucosal dissection: present status and future perspective, including its differentiation from endoscopic mucosal resection, J Gastroenterol, 43, 641-651, 20081014
  20. Endoscopic ultrasonography with double baloon enteroscopy for small bowel diseases, Techniques in Gastrointestinal Endoscopy, 10(3), 113-118, 20080724
  21. Narrow-band imaging magnification predicts the histology and invasion depth of colorectal tumors, Gastrointest Endosc, 69(3), 631-636, 20091001
  22. Metachronous multiple esophageal squamous cell carcinomas and Lugol-voiding lesions after endoscopic mucosal resection, Endoscopy, 41, 304-309, 20091001
  23. Comparison of detectability of small-bowel lesions between capsule endoscopy and double-balloon endoscopy for patients with suspected small-bowel disease, Gastrointest Endosc, 69(4), 857-865, 20091001
  24. Usefulness and limitations of transabdominal ultrasonography for detecting small-bowel tumors, Scand J Gastroenterol, 44, 332-338, 20091001
  25. Evaluation and validation of computed virtual chromoendoscopy in early gastric cancer, Gastrointest Endosc, 69(6), 1052-1058, 20091001
  26. Usefulness of endoscopic ultrasonography in determining the depth of invasion and indication for endoscopic treatment of early gastric cancer, J Clin Gastroenterol, 43(4), 318-322, 20091001
  27. Intracellular localization of survivin determines biological behavior in colorectal cancer, Oncol Rep, 22, 557-562, 20091001
  28. Knack and practical technique of colonoscopic treatment focused on endoscopic mucosal resection using snare, Dig Endosc, 21, S38-S42, 20091001
  29. Cheilitis granulomatosa as an early manifestation of Crohn's disease, Clin J Gastroenterol, 2, 190-193, 20091001
  30. A New Method for Intraluminal Gastrointestinal Stromal Tumor Resection Using Laparoscopic Seromuscular Dissection Technique, Digestive Surgery, 27(6), 461-465, 20101201
  31. Cheilitis granulomatosa as an early manifestation of Crohn's disease, Clin J Gastroenterol, 2, 190-193, 20090501
  32. Metachronous multiple esophageal squamous cell carcinomas and Lugol-voiding lesions after endoscopic mucosal resection, Endoscopy, 41(4), 304-309, 20090401
  33. Evaluation and validation of computed virtual chromoendoscopy in early gastric cancer, Gastrointest Endosc, 69(6), 1052-1058, 20090601
  34. Usefulness of endoscopic ultrasonography in determining the depth of invasion and indication for endoscopic treatment of early gastric cancer, J Clin Gastroenterol, 43(4), 318-322, 20090401
  35. Predicting the clinical response to cytapheresis in steroid-refractory or -dependent ulcerative colitis using contrast-enhanced ultrasonography, Scand J Gastroenterol, 44(5), 405-411, 20090501
  36. A Water-soluble extract from culture medium of ganoderma lucidum mycelia suppresses the development of colorectal adenoma, Hiroshima J Med Sci, 59(1), 1月6日, 20100101
  37. Characteristics of esophageal squamous cell carcinomas and lugol-voiding lesions in patients with head and neck squamous cell carcinoma, J Clin Gastroenterol, 44(2), e27-33, 20100201
  38. Outcome of endoscopic submucosal dissection for colorectal tumors accompanied by fibrosis, Scand J Gastroenterol, 45(11), 1329-1337, 20101101
  39. Quantitative analysis and development of a computer-aided system for identification of regular pit pattern of colorectal lesions, Gastrointest Endosc, 72(5), 1047-1051, 20110501
  40. Quantitative analysis of colorectal lesions observed on magnified endoscopy images, J Gastroenterol, 46(12), 1382-1390, 20111201
  41. Narrow-band imaging magnification predicts the histology and invasion depth of colorectal tumors, Gastrointest Endosc, 69(3), 631-636, 20090301
  42. Usefulness and limitations of transabdominal ultrasonography for detecting small-bowel tumors, Scand J Gastroenterol, 44(3), 332-338, 20090301
  43. Metachronous multiple esophageal squamous cell carcinomas and Lugol-voiding lesions after endoscopic mucosal resection, Endoscopy, 41(4), 304-309, 20090401
  44. Comparison of detectability of small-bowel lesions between capsule endoscopy and double-balloon endoscopy for patients with suspected small-bowel disease, Gastrointest Endosc, 69(4), 857-865, 20090401
  45. Usefulness of endoscopic ultrasonography in determining the depth of invasion and indication for endoscopic treatment of early gastric cancer, J Clin Gastroenterol, 43(4), 318-322, 20090401
  46. Cheilitis granulomatosa as an early manifestation of Crohn's disease, Clin J Gastroenterol, 2, 190-193, 20090501
  47. Predicting the clinical response to cytapheresis in steroid-refractory or -dependent ulcerative colitis using contrast-enhanced ultrasonography, Scand J Gastroenterol, 44(5), 405-411, 20090501
  48. Evaluation and validation of computed virtual chromoendoscopy in early gastric cancer, Gastrointest Endosc, 69(6), 1052-1058, 20090601
  49. Knack and practical technique of colonoscopic treatment focused on endoscopic mucosal resection using snare, Dig Endosc, 21(suppl 1), S38-S42, 20090701
  50. Therapeutic strategy for colorectal laterally spreading tumor, Dig Endosc, 21(suppl 1), S43-S46, 20090701
  51. Intracellular localization of survivin determines biological behavior in colorectal cancer, Oncol Rep, 22(3), 557-562, 20090901
  52. A Water-soluble extract from culture medium of ganoderma lucidum mycelia suppresses the development of colorectal adenoma, Hiroshima J Med Sci, 59(1), 41280, 20100101
  53. Characteristics of esophageal squamous cell carcinomas and lugol-voiding lesions in patients with head and neck squamous cell carcinoma, J Clin Gastroenterol, 44(2), e27-33, 20100201
  54. Characterization of colorectal tumors using narrow-band imaging magnification: combined diagnosis with both pit pattern and microvessel features, Scand J Gastroenterol, 45(9), 1084-1092, 20100901
  55. Outcome of endoscopic submucosal dissection for colorectal tumors accompanied by fibrosis, Scand J Gastroenterol, 45(11), 1329-1337, 20101101
  56. Clinical usefulness of narrow band imaging magnifying classification for colorectal tumors based on both surface pattern and microvessel features, Dig Endosc, 23(suppl 1), 101-105, 20110501
  57. Quantitative analysis and development of a computer-aided system for identification of regular pit pattern of colorectal lesions, Gastrointest Endosc, 72(5), 1047-1051, 20110501
  58. Diagnostic yield of capsule endoscopy vs. double-balloon endoscopy for patients who have undergone total enteroscopy with obscure gastrointestinal bleeding, Hepatogastroenterology, 59(116), 955-959, 20110601
  59. Compliance with standard precautions among gastrointestinal endoscopists and andendoscopy nurses in Japan, Am J Infect Control, 40(1), 80, 20120201
  60. Removal of a sewing needle penetrating the wall of the third portion of the duodenum by double- balloon endoscopy, Clin J Gastroenterol, 5(1), 79-81, 20120201
  61. Regression of rectal MALT lymphoma after antibiotic treatment in a patient negative for Helicobacter pylori, Clin J Gastroenterol, 5(1), 59-63, 20120201
  62. Narrow-band imaging magnification predicts the histology and invasion depth of colorectal tumors, Gastrointest Endosc, 69(3), 631-636, 20090301
  63. Clinicopathologic features and endoscopic treatment of superficially spreading colorectal neoplasms larger than 20 mm, GASTROINTESTINAL ENDOSCOPY, 54(1), 62-66, JUL 2001
  64. Clinical significance of angiogenesis in rectal carcinoid tumors, ONCOLOGY REPORTS, 9(3), 489-494, MAY-JUN 2002
  65. Clinical significance of thrombospondin-1 expression in relation to vascular endothelial growth factor and interleukin-10 expression at the deepest invasive tumor site of advanced colorectal carcinoma, INTERNATIONAL JOURNAL OF ONCOLOGY, 23(4), 901-911, OCT 2003
  66. Clinicopathologic and endoscopic features of colorectal serrated adenoma: differences between polypoid and superficial types, GASTROINTESTINAL ENDOSCOPY, 59(2), 213-219, FEB 2004
  67. Clinical significance of angiopoietin-2 expression at the deepest invasive tumor site of advanced colorectal carcinoma, INTERNATIONAL JOURNAL OF ONCOLOGY, 24(3), 539-547, MAR 2004
  68. Endoscopic submucosal dissection for colorectal neoplasia: possibility of standardization, GASTROINTESTINAL ENDOSCOPY, 66(1), 100-107, JUL 2007
  69. Optical biopsy of GI lesions by reflectance-type laser-scanning confocal microscopy, GASTROINTESTINAL ENDOSCOPY, 66(1), 144-149, JUL 2007
  70. Evaluation of microvessels in colorectal tumors by narrow band imaging magnification, GASTROINTESTINAL ENDOSCOPY, 66(5), 945-952, NOV 2007
  71. Colorectal endoscopic submucosal dissection: present status and future perspective, including its differentiation from endoscopic mucosal resection, JOURNAL OF GASTROENTEROLOGY, 43(9), 641-651, SEP 2008
  72. Intracellular localization of survivin determines biological behavior in colorectal cancer, ONCOLOGY REPORTS, 22(3), 557-562, SEP 2009
  73. Natural Course of Lugol-Voiding Lesions in Patients with Superficial Esophageal Squamous Cell Carcinoma, DIGESTION, 82(1), 60-65, 2010
  74. CURRENT STATUS IN THE OCCURRENCE OF POSTOPERATIVE BLEEDING, PERFORATION AND RESIDUAL/LOCAL RECURRENCE DURING COLONOSCOPIC TREATMENT IN JAPAN, DIGESTIVE ENDOSCOPY, 22(4), 376-380, OCT 2010
  75. Predicting the absence of lymph node metastasis of submucosal invasive gastric cancer: Expansion of the criteria for curative endoscopic resection, SCANDINAVIAN JOURNAL OF GASTROENTEROLOGY, 45(12), 1480-1487, DEC 2010
  76. A New Method for Intraluminal Gastrointestinal Stromal Tumor Resection Using Laparoscopic Seromuscular Dissection Technique, DIGESTIVE SURGERY, 27(6), 461-465, 2010
  77. Improved visibility of lesions of the small intestine via capsule endoscopy with computed virtual chromoendoscopy, GASTROINTESTINAL ENDOSCOPY, 73(2), 299-306, FEB 2011
  78. MID-TERM PROGNOSIS AFTER ENDOSCOPIC RESECTION FOR SUBMUCOSAL COLORECTAL CARCINOMA: SUMMARY OF A MULTICENTER QUESTIONNAIRE SURVEY CONDUCTED BY THE COLORECTAL ENDOSCOPIC RESECTION STANDARDIZATION IMPLEMENTATION WORKING GROUP IN JAPANESE SOCIETY FOR CANCER OF THE COLON AND RECTUM, DIGESTIVE ENDOSCOPY, 23(2), 190-194, APR 2011
  79. Improved detectability of small-bowel lesions via capsule endoscopy with computed virtual chromoendoscopy: A pilot study, SCANDINAVIAN JOURNAL OF GASTROENTEROLOGY, 46(9), 1133-1137, SEP 2011
  80. Frequent somatic mutations of mitochondrial DNA in traditional serrated adenomas but not in sessile serrated adenomas of the colorectum, JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, 26(10), 1565-1569, OCT 2011
  81. RISK FACTORS FOR BLEEDING AFTER ENDOSCOPIC SUBMUCOSAL DISSECTION OF GASTRIC EPITHELIAL NEOPLASM, DIGESTIVE ENDOSCOPY, 23(4), 290-295, OCT 2011
  82. CURRENT STATUS OF COLORECTAL ENDOSCOPIC SUBMUCOSAL DISSECTION IN JAPAN AND OTHER ASIAN COUNTRIES: PROGRESSING TOWARDS TECHNICAL STANDARDIZATION, DIGESTIVE ENDOSCOPY, 24, 67-72, MAY 2012
  83. Clinical validity of endoscopic submucosal dissection for submucosal invasive gastric cancer: a single-center study, GASTRIC CANCER, 15(1), 97-105, JAN 2012
  84. Clinical outcomes of endoscopic submucosal dissection and endoscopic mucosal resection for laterally spreading tumors larger than 20 mm, JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, 27(4), 734-740, APR 2012
  85. Microvascular structure and perfusion imaging of colon cancer by means of contrast-enhanced ultrasonography, ABDOMINAL IMAGING, 37(2), 297-303, APR 2012
  86. New reduced volume preparation regimen in colon capsule endoscopy, WORLD JOURNAL OF GASTROENTEROLOGY, 18(17), 2092-2098, MAY 7 2012
  87. Management of T1 colorectal carcinoma with special reference to criteria for curative endoscopic resection, JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, 27(6), 1057-1062, JUN 2012
  88. Diagnostic Yield of Capsule Endoscopy vs. Double-Balloon Endoscopy for Patients who have Undergone Total Enteroscopy with Obscure Gastrointestinal Bleeding, HEPATO-GASTROENTEROLOGY, 59(116), 955-959, JUN 2012
  89. A novel extra-wide-angle-view colonoscope: a simulated pilot study using anatomic colorectal models, GASTROINTESTINAL ENDOSCOPY, 77(3), 480-483, MAR 2013
  90. Quantitative identification of mucosal gastric cancer under magnifying endoscopy with flexible spectral imaging color enhancement, JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, 28(5), 841-847, MAY 2013
  91. Characteristic magnifying narrow-band imaging features of colorectal tumors in each growth type, INTERNATIONAL JOURNAL OF COLORECTAL DISEASE, 28(4), 459-468, APR 2013
  92. Risk analysis of submucosal invasive rectal carcinomas for lymph node metastasis to expand indication criteria for endoscopic resection, DIGESTIVE ENDOSCOPY, 25, 21-25, MAY 2013
  93. Effectiveness of polaprezinc for low-dose aspirin-induced small-bowel mucosal injuries as evaluated by capsule endoscopy: a pilot randomized controlled study, BMC GASTROENTEROLOGY, 13, JUL 4 2013
  94. Predictors of incomplete resection and perforation associated with endoscopic submucosal dissection for colorectal tumors, GASTROINTESTINAL ENDOSCOPY, 79(3), 427-435, MAR 2014
  95. Outcome of endoscopic submucosal dissection for gastric neoplasm in relationship to endoscopic classification of submucosal fibrosis, GASTRIC CANCER, 16(3), 404-410, JUL 2013
  96. Clinical usefulness of classification by transabdominal ultrasonography for detection of small-bowel stricture, SCANDINAVIAN JOURNAL OF GASTROENTEROLOGY, 48(9), 1041-1047, SEP 2013
  97. Risk factors for vertical incomplete resection in endoscopic submucosal dissection as total excisional biopsy for submucosal invasive colorectal carcinoma, INTERNATIONAL JOURNAL OF COLORECTAL DISEASE, 28(9), 1247-1256, SEP 2013
  98. Clinical outcomes of endoscopic submucosal dissection for early gastric cancer in patients with chronic kidney disease, JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, 28(10), 1632-1637, OCT 2013
  99. Is Occult Obscure Gastrointestinal Bleeding a Definite Indication for Capsule Endoscopy? A Retrospective Analysis of Diagnostic Yield in Patients with Occult versus Overt Bleeding, GASTROENTEROLOGY RESEARCH AND PRACTICE, 2013
  100. Clinicopathologic features of hyperplastic/serrated polyposis syndrome in Japan, JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, 28(11), 1693-1698, NOV 2013
  101. Feasibility of spiral enteroscopy in Japanese patients: Study in two tertiary hospitals, DIGESTIVE ENDOSCOPY, 25(4), 406-411, JUL 2013
  102. Current status and future perspectives of endoscopic diagnosis and treatment of diminutive colorectal polyps, DIGESTIVE ENDOSCOPY, 26, 104-108, APR 2014
  103. Is small-bowel capsule endoscopy effective for diagnosis of esophagogastric lesions related to portal hypertension?, JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, 29(3), 511-516, MAR 2014
  104. Characteristics of Metachronous Gastric Tumors after Endoscopic Submucosal Dissection for Gastric Intraepithelial Neoplasms, GASTROENTEROLOGY RESEARCH AND PRACTICE, 2014
  105. Clinical validity of the expanded criteria for endoscopic resection of undifferentiated-type early gastric cancer based on long-term outcomes, SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES, 28(2), 639-647, FEB 2014
  106. Condition of muscularis mucosae is a risk factor for lymph node metastasis in T1 colorectal carcinoma, SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES, 28(4), 1269-1276, APR 2014
  107. Endoscopic features and management of diminutive colorectal submucosal invasive carcinoma, DIGESTIVE ENDOSCOPY, 26, 78-83, APR 2014
  108. Is It Possible to Discriminate Between Neoplastic and Nonneoplastic Lesions in Ulcerative Colitis by Magnifying Colonoscopy?, INFLAMMATORY BOWEL DISEASES, 20(3), 508-513, MAR 2014
  109. Comparison of Small-Bowel Mucosal Injury between Low-Dose Aspirin and Non-Aspirin Non-Steroidal Anti-Inflammatory Drugs: A Capsule Endoscopy Study, DIGESTION, 89(3), 225-231, 2014
  110. Risk factors for delayed bleeding after endoscopic submucosal dissection for colorectal neoplasms, INTERNATIONAL JOURNAL OF COLORECTAL DISEASE, 29(7), 877-882, JUL 2014
  111. Continued use of low-dose aspirin does not increase the risk of bleeding during or after endoscopic submucosal dissection for early gastric cancer, GASTRIC CANCER, 17(3), 489-496, JUL 2014
  112. Characteristic Epithelium with Low-Grade Atypia Appears on the Surface of Gastric Cancer after Successful Helicobacter pylori Eradication Therapy, HELICOBACTER, 19(4), 289-295, AUG 2014
  113. Clinical outcomes of endoscopic submucosal dissection for superficial Barrett's adenocarcinoma, GASTROINTESTINAL ENDOSCOPY, 80(2), 239-245, AUG 2014
  114. A Computer System To Be Used With Laser-based Endoscopy for Quantitative Diagnosis of Early Gastric Cancer, JOURNAL OF CLINICAL GASTROENTEROLOGY, 49(2), 108-115, FEB 2015
  115. Risk factors and management of positive horizontal margin in early gastric cancer resected by en bloc endoscopic submucosal dissection, GASTRIC CANCER, 18(2), 332-338, APR 2015
  116. Towards safer and appropriate application of endoscopic submucosal dissection for T1 colorectal carcinoma as total excisional biopsy: Future perspectives, DIGESTIVE ENDOSCOPY, 27(2), 216-222, JAN 2015
  117. Improved visibility of colorectal flat tumors using image-enhanced endoscopy, DIGESTIVE ENDOSCOPY, 27, 35-39, APR 2015
  118. Advanced Method for Evaluation of Gastric Cancer Risk By Serum Markers: Determination of True Low-Risk Subjects for Gastric Neoplasm, HELICOBACTER, 19(1), 1-8, FEB 2014
  119. Major predictors of portal hypertensive enteropathy in patients with liver cirrhosis, JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, 30(1), 124-130, JAN 2015
  120. Endoscopic Submucosal Dissection as Total Excisional Biopsy for Clinical T1 Colorectal Carcinoma, DIGESTION, 91(1), 64-69, 2015
  121. Differences in K-ras and mitochondrial DNA mutations and microsatellite instability between colorectal cancers of Vietnamese and Japanese patients, BMC GASTROENTEROLOGY, 14, NOV 30 2014
  122. Feasibility of a novel colonoscope with extra-wide angle of view: a clinical study, ENDOSCOPY, 47(5), 444-448, MAY 2015
  123. Next-generation narrow band imaging system for colonic polyp detection: a prospective multicenter randomized trial, INTERNATIONAL JOURNAL OF COLORECTAL DISEASE, 30(7), 947-954, JUL 2015
  124. Local Recurrence After Endoscopic Resection for Large Colorectal Neoplasia: A Multicenter Prospective Study in Japan, AMERICAN JOURNAL OF GASTROENTEROLOGY, 110(5), 697-707, MAY 2015
  125. Major predictors and management of small-bowel angioectasia, BMC GASTROENTEROLOGY, 15, AUG 25 2015
  126. Risk of bleeding after endoscopic submucosal dissection for colorectal tumors in patients with continued use of low-dose aspirin, JOURNAL OF GASTROENTEROLOGY, 50(10), 1041-1046, OCT 2015
  127. Evaluation of the clinical efficacy of colon capsule endoscopy in the detection of lesions of the colon: prospective, multicenter, open study, GASTROINTESTINAL ENDOSCOPY, 82(5), 861-869, NOV 2015
  128. Clinical usefulness of transabdominal ultrasonography prior to patency capsule for suspected small-bowel strictures, SCANDINAVIAN JOURNAL OF GASTROENTEROLOGY, 51(3), 281-287, MAR 3 2016
  129. Clinical usefulness of endocytoscopy in the remission stage of ulcerative colitis: a pilot study, JOURNAL OF GASTROENTEROLOGY, 50(11), 1087-1093, NOV 2015
  130. Long-term outcomes after treatment for T1 colorectal carcinoma, INTERNATIONAL JOURNAL OF COLORECTAL DISEASE, 31(3), 571-578, MAR 2016
  131. Mouse model of proximal colon-specific tumorigenesis driven by microsatellite instability-induced Cre-mediated inactivation of Apc and activation of Kras, JOURNAL OF GASTROENTEROLOGY, 51(5), 447-457, MAY 2016
  132. Endoscopic diagnosis of colorectal serrated lesions: Current status and future perspectives based on the results of a questionnaire survey, DIGESTIVE ENDOSCOPY, 28, 35-42, APR 2016
  133. Diagnosis of sessile serrated adenomas/polyps using endocytoscopy (with videos), DIGESTIVE ENDOSCOPY, 28, 43-48, APR 2016
  134. Clinical significance and validity of the subclassification for colorectal laterally spreading tumor granular type, JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, 31(5), 973-979, MAY 2016
  135. Polidocanol injection therapy for small-bowel hemangioma by using double-balloon endoscopy, GASTROINTESTINAL ENDOSCOPY, 84(1), 163-167, JUL 2016
  136. Clinical usefulness of a single-use splinting tube for poor endoscope operability in deep colonic endoscopic submucosal dissection, ENDOSCOPY INTERNATIONAL OPEN, 4(6), E614-E617, JUN 2016
  137. Long-term outcomes after treatment for pedunculated-type T1 colorectal carcinoma: a multicenter retrospective cohort study, JOURNAL OF GASTROENTEROLOGY, 51(7), 702-710, JUL 2016
  138. ADH1B and ALDH2 are associated with metachronous SCC after endoscopic submucosal dissection of esophageal squamous cell carcinoma, CANCER MEDICINE, 5(7), 1397-1404, JUL 2016
  139. Useful condition of chromoendoscopy with indigo carmine and acetic acid for identifying a demarcation line prior to endoscopic submucosal dissection for early gastric cancer, BMC GASTROENTEROLOGY, 16, JUL 19 2016
  140. Long-term prognosis after endoscopic submucosal dissection for early gastric cancer in super-elderly patients, SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES, 30(10), 4321-4329, OCT 2016
  141. Endoscopic submucosal dissection for anorectal tumor with hemorrhoids close to the dentate line: a multicenter study of Hiroshima GI Endoscopy Study Group, SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES, 30(10), 4425-4431, OCT 2016
  142. Risk factors for esophageal stenosis after entire circumferential endoscopic submucosal dissection for superficial esophageal squamous cell carcinoma, SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES, 30(9), 4049-4056, SEP 2016
  143. Clinicopathologic characteristics and management of minute esophageal lesions diagnosed by narrow-band imaging endoscopy, ENDOSCOPY INTERNATIONAL OPEN, 4(9), E927-E932, SEP 2016
  144. Clinical impact of dual red imaging in colorectal endoscopic submucosal dissection: a pilot study, THERAPEUTIC ADVANCES IN GASTROENTEROLOGY, 9(5), 679-683, SEP 2016
  145. Long-term outcomes after treatment for T1 colorectal carcinomas, Int J Colorectal Dis, 31(3), 571-578, 2016
  146. Mouse model of proximal colon-specific tumorigenesis driven by microsatellite instability-induced Cre-mediated inactivation of Apc and activation of Kras, J Gastroenterol, 51(5), 447-457, 2016
  147. Clinical significance and validity of the subclassification for colorectal laterally spreading tumor granular type, J Gastroenterol Hepatol, 31(4), 973-979, 2016
  148. Polidocanol injection therapy for small-bowel hemangioma by using double-balloon endoscopy, Gastrointest Endosc, 84(1), 163-167, 2016
  149. ADH1B and ALDH2 are associated with metachronous SCC after endoscopic submucosal dissection of esophageal squamous cell carcinoma, Cancer Med, 5(7), 1397-1404, 2016
  150. Useful condition of chromoendoscopy with indigo carmine and acetic acid for identifying a demarcation line prior to endoscopic submucosal dissection for early gastric cancer, BMC Gastroenterol, 16(72), 2016
  151. Pedunculated-type T1 colorectal carcinoma with lung carcinoma metastasis at the deepest invasive portion, Clin J Gastroenterol, 9(4), 208-214, 2016
  152. Pedunculated-type T1 colorectal carcinoma with lung carcinoma metastasis at the deepest invasive portion, Clin J Gastroenterol, 9(4), 208-214, 2016
  153. Clinical impact of dual red imaging in colorectal endoscopic submucosal dissection: a pilot study, Therap Adv Gastroenterol, 9(5), 679-683, 2016
  154. Polyglycolic acid sheet application for intractable acute hemorrhagic rectal ulcer, Dig Endosc, 28(6), 689, 2016
  155. Clinicopathologic characteristics and management of minute esophageal lesions diagnosed by narrow-band imaging endoscopy, Endosc Int Open, 4(9), E927-E932, 2016
  156. Endoscopic submucosal dissection for anorectal tumor with hemorrhoids close to the dentate line: a multicenter study of Hiroshima GI Endoscopy Study Group, Surg Endosc, 30(10), 4425-4431, 2016
  157. Long-term prognosis after endoscopic submucosal dissection for early gastric cancer in super-elderly patients, Surg Endosc, 30(10), 4321-4329, 2016
  158. Clinical usefulness of narrow band imaging magnifying colonoscopy for assessing ulcerative colitis-associated cancer/dysplasia, Endosc Int Open, 4(11), E1183-E1187, 2016
  159. Area of submucosal invasion and width of invasion predict lymph node metastasis in pT1 colorectal cancers, Dis Colon Rectum, 59(2), e19-e20, 2016
  160. Third-generation capsule endoscopy outperforms second-generation based on the detectability of esophageal varices, Gastroenterol Res Pract, 2016
  161. Narrow-band imaging (NBI) magnifying endoscopic classification of colorectal tumors proposed by the Japan NBI Expert Team, DIGESTIVE ENDOSCOPY, 28(5), 526-533, JUL 2016
  162. Evaluation for the Clinical Efficacy of Colon Capsule Endoscopy in the Detection of Laterally Spreading Tumors, DIGESTION, 95(1), 43-48, 2017
  163. Long-term outcomes after endoscopic submucosal dissection for superficial colorectal tumors, GASTROINTESTINAL ENDOSCOPY, 85(3), 546-553, MAR 2017
  164. Clinical impact and characteristics of the narrow-band imaging magnifying endoscopic classification of colorectal tumors proposed by the Japan NBI Expert Team, GASTROINTESTINAL ENDOSCOPY, 85(4), 816-821, APR 2017
  165. Clinical Usefulness of the VS Classification System Using Magnifying Endoscopy with Blue Laser Imaging for Early Gastric Cancer, GASTROENTEROLOGY RESEARCH AND PRACTICE, 2017
  166. Indications for Small-bowel Capsule Endoscopy in Patients with Chronic Abdominal Pain, INTERNAL MEDICINE, 56(12), 1453-1457, 2017
  167. Clinical usefulness of magnifying endoscopy for non-ampullary duodenal tumors, ENDOSCOPY INTERNATIONAL OPEN, 5(4), E297-E302, APR 2017
  168. Significance of non-alcoholic fatty liver disease in Crohn's disease: A retrospective cohort study, HEPATOLOGY RESEARCH, 47(9), 872-881, AUG 2017
  169. Standardization of endoscopic resection for colorectal tumors larger than 10 mm in diameter, DIGESTIVE ENDOSCOPY, 29, 40-44, APR 2017
  170. Proton pump inhibitor therapy did not increase the prevalence of small-bowel injury: A propensity-matched analysis, PLOS ONE, 12(8), AUG 3 2017
  171. Mesalazine-induced enteritis causing refractory diarrhea., Digestive Endoscopy, 29, 128-129, 2017
  172. Diagnostic performance of Japan NBI Expert Team classification for differentiation among noninvasive, superficially invasive, and deeply invasive colorectal neoplasia, GASTROINTESTINAL ENDOSCOPY, 86(4), 700-709, OCT 2017
  173. Long-term outcomes after treatment for T1 colorectal carcinoma: a multicenter retrospective cohort study of Hiroshima GI Endoscopy Research Group, JOURNAL OF GASTROENTEROLOGY, 52(11), 1169-1179, NOV 2017
  174. Clinical impact of surveillance colonoscopy using magnification without diminutive polyp removal, DIGESTIVE ENDOSCOPY, 29(7), 773-781, NOV 2017
  175. Clinicopathologic and endoscopic features of early-stage colorectal serrated adenocarcinoma, BMC GASTROENTEROLOGY, 17, DEC 12 2017
  176. Associations between drugs and small-bowel mucosal bleeding: Multicenter capsule-endoscopy study, DIGESTIVE ENDOSCOPY, 30(1), 79-89, JAN 2018
  177. Primary Signet Ring Cell Carcinoma of Rectum Diagnosed by Boring Biopsy in Combination with Endoscopic Mucosal Resection, CASE REPORTS IN MEDICINE, 2018
  178. Japanese Society for Cancer of the Colon and Rectum (JSCCR) Guidelines 2016 for the Clinical Practice of Hereditary Colorectal Cancer, JOURNAL OF THE ANUS RECTUM AND COLON, 2, S1-S51, JAN 2018
  179. Clinical outcomes of endoscopic submucosal dissection for colorectal tumors: a large multicenter retrospective study from the Hiroshima GI Endoscopy Research Group, GASTROINTESTINAL ENDOSCOPY, 87(3), 714-722, MAR 2018
  180. Japanese Society for Cancer of the Colon and Rectum (JSCCR) guidelines 2016 for the treatment of colorectal cancer, INTERNATIONAL JOURNAL OF CLINICAL ONCOLOGY, 23(1), 1-34, FEB 2018
  181. Advanced diagnostic endoscopy in the lower gastrointestinal tract: A review of JGES core sessions, DIGESTIVE ENDOSCOPY, 30(2), 192-197, MAR 2018
  182. Clinical significance of small-bowel villous edema in patients with liver cirrhosis: A capsule endoscopy study, JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, 33(4), 825-830, APR 2018
  183. Taking Warfarin with Heparin Replacement and Direct Oral Anticoagulant Is a Risk Factor for Bleeding after Endoscopic Submucosal Dissection for Early Gastric Cancer, DIGESTION, 97(3), 240-249, 2018
  184. Challenges associated with the pathological diagnosis of colorectal tumors less than 10mm in size, DIGESTIVE ENDOSCOPY, 30, 41-44, APR 2018
  185. Evaluation of the visibility of early gastric cancer using linked color imaging and blue laser imaging, BMC GASTROENTEROLOGY, 17, DEC 8 2017
  186. Curative Criteria After Endoscopic Resection for Superficial Esophageal Squamous Cell Carcinomas, DIGESTIVE DISEASES AND SCIENCES, 63(6), 1605-1612, JUN 2018
  187. Predictive Factors of Portal Hypertensive Enteropathy Exacerbation in Patients with Liver Cirrhosis: A Capsule Endoscopy Study, DIGESTION, 98(1), 33-40, 2018
  188. Use of anticoagulants increases risk of bleeding after colorectal endoscopic submucosal dissection, ENDOSCOPY INTERNATIONAL OPEN, 6(7), E857-E864, JUL 2018

Invited Lecture, Oral Presentation, Poster Presentation

  1. Clinical validity of the curative criteria after endoscopic resection for pedunculated-type T1 colorectal carcinoma: A multicenter retrospective cohort study, Asayama N, Tanaka S, Oka S, Kunihiro M, Hiraga Y, Nagata S, Kodoi A, Okanobu H, Onogawa S, Kuwai T, Tamura T, Mukai S, Goto E, Kanao H, Kuwabara T, Shimamoto F, Chayama K, American Society for Gastrointestinal Endoscopy (ASGE), 2015/05, Without Invitation, English, Washington DC, ISA
  2. Clinicopathological features and findings of endoscopic ultrasonography for predicting submucosal invasion of superficial Barrett's adenocarcinomas, Mizumoto T, Sanomura Y, Tanaka S, Kurihara M, Yoshifuku Y, Miwata T, Oka S, Chayama K, Arihiro K, 2016/03/17, Without Invitation, Japanese
  3. Expanded indication of ESD for undifferentiated-type EGC, Oka S, Tanaka S, Korea International Gastric Cancer Week 2016 (KINGCA Week 2016) & 6th Asia Pacific Gastroesophageal Cancer Congress (6th APGCC), 2016/04, Without Invitation, Japanese
  4. ADH1B and ALDH2 are associated with metachronous SCC after endoscopic submucosal dissection of esophageal squamous cell carcinoma, Urabe Y, Kagemoto K, Miwata T, Oka S, Ochi H, Kitadai Y, Tanaka S, Chayama K, GI research Academy 2016, 2016/05/16, Without Invitation, Japanese
  5. Prognosis of recurrence after endoscopic resection for T1 colorectal carcinomas: results of a multicenter questionnaire survey conducted by japanese society for cancer of the colon and rectum, Oka S, Saitoh Y, Tanaka S, Saito Y, Ikematsu H, Igarashi M, Wada Y, Kudo S, Kobayashi K, Inoue Y, Uraoka T, Iishi H, Yamano H, Tsuruta O, Nagata S, Kurahara K, Yamaguchi Y, Sano Y, Kashida H, Horimatsu T, Saito S, American Society for Gastrointestinal Endoscopy (ASGE) 2016 (DDW), 2016/05, Without Invitation, Japanese
  6. Polidocanol injection therapy for small-bowel hemangioma using double-balloon endoscopy, Igawa A, Oka S, Tanaka S, Kunihara S, Nakano M, Chayama K, American Society for Gastrointestinal Endoscopy (ASGE) 2016 (DDW), 2016/05, Without Invitation, Japanese
  7. Surveillance colonoscopy using magnification without removal for minute adenoma-based on the concept of semi-clean colon, Ninomiya Y, Tanaka S, Oka S, Sumimoto K, Hirano D, Tamaru Y, Asayama N, Shigita K, Hayashi R, Matsuo T, Chayama K, American Society for Gastrointestinal Endoscopy (ASGE) 2016 (DDW), 2016/05, Without Invitation, Japanese
  8. Long-term outcomes after treatment for T1 colorectal carcinoma -A multicenter retrospective study of Hiroshima GI Endoscopy Research Group-, Tamaru Y, Tanaka S, Oka S, Nagata S, Hiraga Y, Kuwai T, Kodoi A, Tamaru Y, Kunihara S, Okanobu H, Nakadoi K, Kanao H, Higashiyama M, Shimamoto F, Chayama K, American Society for Gastrointestinal Endoscopy (ASGE) 2016 (DDW), 2016/05/21, Without Invitation, Japanese
  9. Colonic Manifestations of Chronic Granulomatous Disease, Sagami S, Tanaka S, Ueno Y, Nagai K, Fujita A, Nishiyama S, Hayashi R, Oka S, Ito M, Kitadai Y, Miki M, Doi T, Mizoguchi Y, Kobayashi M, Chayama K, American Society for Gastrointestinal Endoscopy (ASGE) 2016 (DDW), 2016/06/21, Without Invitation, Japanese
  10. Long-term outcomes of endoscopic submucosal dissection for colorectal neoplasias, Shigita K, Tanaka S, Oka S, Sumimoto K, Hirano D, Tamaru Y, Ninomiya Y, Asayama N, Hayashi N, Shimamoto F, Arihiro K, Chayama K, American Society for Gastrointestinal Endoscopy (ASGE) 2016 (DDW), 2016/05/21, Without Invitation, Japanese
  11. Predictive factors of portal hypertensive enteropathy exacerbation in patients with liver cirrhosis -a capsule endoscopy study-, Kunihara S, Oka S, Tanaka S, Igawa A, Nakano M, Aoyama T, Nagaoki Y, Aikata H, Chayama K, American Society for Gastrointestinal Endoscopy (ASGE) 2016 (DDW), 2016/05, Without Invitation, Japanese
  12. Improved visibility of early gastric cancer using linked color imaging compared with blue laser imaging, Yoshifuku Y, Sanomura Y, Oka S, Kurihara M, Mizumoto T, Miwata T, Urabe Y, Hiyama T, Tanaka S, Chayama K, American Society for Gastrointestinal Endoscopy (ASGE) 2016 (DDW), 2016/05/21, Without Invitation, Japanese
  13. Comparison between newly-developed narrow band imaging and panchromoendoscopy for surveillance colonoscopy in patients with longstanding ulcerative colitis: a prospective multicenter randomized controlled trial, navigator study, Watanabe K, Nishishita M, Shimamoto F, Fukuchi T, Esaki M, Okamoto Y, Maehata Y, Oka S, Nishiyama S, Fujii S, Hirai F, Matsui T, Kakimoto K, Okada T, Inoue T, Hida N, Goto H, Nozaki R, Sakurai T, Kashida H, Takeuchi K, American Society for Gastrointestinal Endoscopy (ASGE) 2016 (DDW), 2016/05/21, Without Invitation, Japanese
  14. NBI magnifying endoscopic classification of colorectal tumors proposed by the Japan NBI expert team (Jnet), Saito Y, Sano Y, Tanaka S, Kudo S, Fujii T, Matsuda T, Ikematsu H, Wada Y, Saito S, Oka S, Kawano H, Nakamura H, Hotta K, Horimatsu T, Tamaki N, Sakamoto N, Fu Kuangi, Tsuruta O, Uraoka T, Kashida H, Takeuchi Y, American Society for Gastrointestinal Endoscopy (ASGE) 2016 (DDW), 2016/05/21, Without Invitation, Japanese
  15. New NBI magnifying endoscopic classification for colorectal tumors proposed by the Japan NBI Expert Team (JNET), Sumimoto K, Tanaka S, Sano Y, Kudo S, Hayashi N, Oka S, Iwatate M, Saito S, Matsuda T, Wada Y, Fujii T, Ikematsu H, Uraoka T, Kobayashi N, Nakamura H, Hotta K, Horimatsu T, Sakamoto N, Fu K, Tsuruta O, Kawano H, 24th United European Gastroenterology Week (UEGW) 2016, 2016/10/15, Without Invitation, Japanese
  16. Clinical usefulness of magnifying endoscopy for non-ampullary duodenal tumors, Mizumoto T, Sanomura Y, Oka S, Kuroki K, Kurihara M, Yoshifuku Y, Tanaka S, Chayama K, 24th United European Gastroenterology Week (UEGW) 2016, 2016/10/15, Without Invitation, Japanese
  17. Clinicopathologic and endoscopic features of early stage colorectal serrated adenocarcinoma, Hirano D, Tanaka S, Oka S, Sumimoto K, Ninomiya Y, Tamaru Y, Asayama N, Shigita K, Hayashi N, Shimamoto F, Chayama K, 24th United European Gastroenterology Week (UEGW) 2016, 2016/10/15, Without Invitation, Japanese
  18. Risk of bleeding after endoscopic submucosal dissection for colorectal neoplasias in patients with anticoagulants, Ninomiya Y, Tanaka S, Oka S, Boda K, Yamashita K, Hirano D, Sumimoto K, Tamaru Y, Shigita K, Hayashi N, Chayama K, 2016/11/02, Without Invitation, Japanese
  19. Risk factors and management of pyloric stenosis after endoscopic submucosal dissection for early gastric cancer, Yoshifuku Y, Sanomura Y, Oka S, Kuroki K, Kurihara M, Mizumoto T, Urabe Y, Hiyama T, Tanaka S, Chayama K, 2016/11/02, Without Invitation, Japanese
  20. Clinical significance and pitfall of LST subclassification, Oka S, Asian Pacific Digestive Week (APDW) 2016, 2016/11, Without Invitation, Japanese
  21. Evaluation of the clinical validity of endoscopic resection for superficial non-ampullary duodenal epithelial tumors., Kuroki K, Sanomura Y, Tanaka S, Kurihara M, Mizumoto T, Yoshifuku Y, Urabe Y, Oka S, Hiyama T, Chayama K., American Society for Gastrointestinal Endoscopy (ASGE) 2017, Without Invitation, English
  22. Diagnosis-IEE, NICE, JNET., Oka S, Tanaka S, Chayama K., 93th Japan Gastroenterological Endoscopy Society (JGES), With Invitation, English
  23. A nationwide multicenter study on adverse events associated with a patency capsule: additional survey for the Japanese Association for Capsule Endoscopy-oriented appropriate use survey for patency capsule (J-POP) Study., Omori T, Watanabe K, Ohmiya N, Hirai F, Nakamura M, Kagaya T, Oka S, Ozeki K, Kawano S, Ninomiya K, Nakaji K, Iimuro M, Handa O, Tokuhara D, Sagawa T, Wakamatsu T, Kato S, Araki A, Koike Y, Hashimoto S, Mannami T, Higaki S, Hayashida M, Sameshima Y, Hasegawa D, Tokushige K, Matsui T, 2017/05, Without Invitation, English
  24. Indication of small-bowel capsule endoscopy in patients with chronic abdominal pain, Otani I, Oka S, Tanaka S, Nakano M, Kunihara S, Igawa A, Chayama K, ENDO 2017, 2017/02, Without Invitation, Japanese
  25. Preoperative diagnosis of magnifying endoscopy with narrow-band imaging and EUS for MM/SM1 superficial esophageal squamous cell carcinoma, Urabe Y, Oka S, Tanaka S, Mizumoto T, Yoshifuku Y, Kagemoto K, Sanomura Y, Chayama K, ENDO 2017, Without Invitation, Japanese
  26. Clinical outcomes of endoscopic submucosal dissection for deep submucosal invasive gastric cancer, Yoshifuku Y, Sanomura Y, Tanaka S, Kuroki K, Kurihara M, Mizumoto T, Urabe Y, Oka S, Hiyama T, Chayama K, 2017/03, Without Invitation, Japanese
  27. Taking warfarin and DOAC is risk factor for bleeding after ESD for early gastric cancer, Sanomura Y, Tanaka S, Oka S, Chayama K, Without Invitation, Japanese
  28. A case of esophageal carcinosarcoma resected by laparoscopy and endoscopy cooperative surgery (LECS), Kuroki K, Sanomura Y, Tanaka S, Mizumoto T, Kurihara M, Yoshifuku Y, Oka S, Chayama K, Hotta R, Tanabe K, Ohdan H, Arihiro K, 15th LECS Seminar, 2017/03, Without Invitation, Japanese
  29. Do diminutive adenomas detected by using magnifying colonoscopy require removal?, Ninomiya Y, Tanaka S, Oka S, Takigawa H, Matsumoto K, Boda K, Yamashita K, Hirano D, Sumimoto K, Tamaru Y, Hayashi N, Chayama K, Asian Pacific Digestive Week (APDW) 2017, 2017/09, Without Invitation, Japanese
  30. Clinical efficacy of treatment with tegafur-uracil in patient with non-curative early gastric or colorectal cancer after endoscopic resection, Asian Pacific Digestive Week (APDW) 2017, Without Invitation, Japanese
  31. CURATIVE CONDITIONS AFTER ENDOSCOPIC RESECTION FOR MM/SM1 OESOPHAGEAL SQUAMOUS CELL CARCINOMA BASED ON LONG-TERM OUTCOMES, Without Invitation, English
  32. MANAGEMENT OF OCCULT OBSCURE GASTROINTESTINAL BLEEDING PATIENTS BASED ON LONG-TERM OUTCOMES, 25th United European Gastroenterology Week (UEGW) 2017, 2017, Without Invitation, English
  33. Has the safety of colorectal endoscopic submucosal dissection been maintained even in the regional general hospital in Japan? : a multicenter prospective cohort study, 25th United European Gastroenterology Week (UEGW) 2017, 2017, Without Invitation, Japanese
  34. Clinical usefullness of endoscopic ultrasonography for diagnosis of invasion depth in early gastric cancer, Without Invitation, English